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Claude Opus 4.8 vs GPT-5.4 Nano

Claude Opus 4.8

Anthropic

95#3
vs
GPT-5.4 Nano

OpenAI

79#60
Signal-by-Signal Comparison
SignalClaude Opus 4.8DeltaGPT-5.4 Nano
Capabilities
100
--
100
Benchmarks
93
+3
90
Pricing
75
-24
99
Context window size
86
+6
80
Recency
100
--
100
Output Capacity
85
--
85
Overall Result
2 wins
of 6
1 wins
Claude Opus 4.8 wins 2 of 6 signals

Score History

Score History (17 data points)
Claude Opus 4.8GPT-5.4 Nano
Claude Opus 4.8

94.7

current score

Leader

Claude Opus 4.8

right now

GPT-5.4 Nano

78.8

current score

LMMarketCap.com
Interactive Price Comparison
100Kcalls/month
1,000tokens (~1,333 chars)
500tokens (~667 chars)

Claude Opus 4.8

Anthropic

Per request$0.017500
Daily$58.33
Monthly$1750.00
Annual$21000.00

GPT-5.4 Nano

OpenAI

Best Value
Per request$0.000825
Daily$2.75
Monthly$82.50
Annual$990.00

GPT-5.4 Nano saves you $1667.50/month

That's $20010.00/year compared to Claude Opus 4.8 at your current usage level of 100K calls/month.

95% cheaper
Choose GPT-5.4 Nano for cost optimization

Claude Opus 4.8 pricing:
Input:$5.00/M tokens
Output:$25.00/M tokens
GPT-5.4 Nano pricing:
Input:$0.20/M tokens
Output:$1.25/M tokens
Winner
Claude Opus 4.8

Anthropic

95

Composite Score

GPT-5.4 Nano

OpenAI

79

Composite Score

Signal-by-Signal Comparison
MetricClaude Opus 4.8GPT-5.4 NanoWinner
Overall Score
95
79
Claude Opus 4.8
Rank#3#60
Claude Opus 4.8
Quality Rank#3#60
Claude Opus 4.8
Adoption Rank#3#60
Claude Opus 4.8
Parameters------
Context Window1000K400K
Claude Opus 4.8
Pricing$5.00/$25.00/M$0.20/$1.25/M--
Signal Scores
Capabilities
100
100
Claude Opus 4.8
Benchmarks
93
90
Claude Opus 4.8
Pricing
75
99
GPT-5.4 Nano
Context window size
86
80
Claude Opus 4.8
Recency
100
100
Claude Opus 4.8
Output Capacity
85
85
Claude Opus 4.8
Benchmark Head-to-Head(11 benchmarks)
Claude Opus: 3GPT-5.4 Nano: 1
Claude Opus
GPT-5.4 Nano
Normalized 0-100%
MMLU
-94%
MMLU-Pro
-87%
GPQA Diamond
93.6%88.5%
MATH-500
-95.5%
HumanEval
-97.5%
SWE-bench Verified
88.6%80%
IFEval
-93.5%
BBH
-92%
Arena Elo
14791485
LiveBench
-79%
HLE
49.8%39%
Benchmark Interpretation

Our score (0-100) is driven by benchmark performance (90%) from Arena Elo ratings, MMLU, GPQA, HumanEval, SWE-bench, and 15+ standardized evaluations. Capabilities and context window serve as tiebreakers (10%). Learn more about our methodology.

Claude Opus 4.8Elite Tier

Scores 95/100 (rank #3), placing it in the top 99% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100
GPT-5.4 NanoStrong Performer

Scores 79/100 (rank #60), placing it in the top 80% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100

Claude Opus 4.8 has a 16-point advantage, which typically translates to noticeably stronger performance on complex reasoning, code generation, and multi-step tasks.

When to Use Each Model

Choose Claude Opus 4.8 when you need:

  • Processing long documents or large codebases (1000K token context)
  • Step-by-step reasoning and chain-of-thought problem solving

Choose GPT-5.4 Nano when you need:

  • High-volume production workloads where API costs must be minimized
  • Step-by-step reasoning and chain-of-thought problem solving
Cost-Performance Analysis
Claude Opus 4.8
Input cost$5.00/M tokens
Output cost$25.00/M tokens
Cost per quality point$0.317
Est. monthly (1M tokens/day)$450.00
GPT-5.4 NanoBest Value
Input cost$0.20/M tokens
Output cost$1.25/M tokens
Cost per quality point$0.018
Est. monthly (1M tokens/day)$21.75

GPT-5.4 Nano offers 95% better value per quality point. At 1M tokens/day, you'd spend $21.75/month with GPT-5.4 Nano vs $450.00/month with Claude Opus 4.8 - a $428.25 monthly difference.

Latency & Speed
Claude Opus 4.8Faster
Speed score0/100
GPT-5.4 Nano
Speed score0/100

Both models have comparable response speeds. For most applications, the latency difference is negligible.

When latency matters most: Interactive chatbots, IDE code completion, real-time translation, and user-facing applications where response time directly impacts experience. For batch processing, background summarization, or offline analysis, latency is less critical.

Example Use Cases

Code generation & review

Based on overall model capabilities and architecture for coding tasks like generating functions, debugging, and refactoring

Claude Opus 4.8

Customer support chatbot

Suitable for user-facing chat with competitive response times. GPT-5.4 Nano also offers lower per-token costs for high-volume support

Claude Opus 4.8

Long document analysis

Larger context window (1000K tokens) can process longer documents, contracts, and research papers in a single pass

Claude Opus 4.8

Batch data extraction

Lower output pricing ($1.25/M) reduces costs when processing thousands of records daily

GPT-5.4 Nano

Creative writing & content

Higher overall composite score (95/100) correlates with better nuance, coherence, and style in long-form content

Claude Opus 4.8

Image understanding & OCR

Supports vision input - can analyze screenshots, diagrams, photos, and scanned documents directly

Claude Opus 4.8
Which Should You Choose?
Our recommendation:
Claude Opus 4.8

Claude Opus 4.8 clearly outperforms GPT-5.4 Nano with a significant 15.900000000000006-point lead. For most general use cases, Claude Opus 4.8 is the stronger choice. However, GPT-5.4 Nano may still excel in niche scenarios.

Claude Opus 4.8
Recommended

by Anthropic

  • Choose for Quality - Marginally better benchmark scores; both are excellent
  • Choose for Reliability - Higher uptime and faster response speeds
  • Choose for Prototyping - Stronger community support and better developer experience
  • Choose for Production - Wider enterprise adoption and proven at scale

by OpenAI

  • Choose for Cost - 95% lower pricing; better value at scale
Capability Comparison
CapabilityClaude Opus 4.8GPT-5.4 Nano
Vision (Image Input)
Function Calling
Streaming
JSON Mode
Reasoning
Web Search
Image Output
Monthly Cost Calculator
1,000tokens (600 in / 400 out)
100requests/day (3,000/month)

Claude Opus 4.8

Anthropic

$39.00
estimated monthly cost

GPT-5.4 Nano

OpenAI

Best Value
$1.86
estimated monthly cost

GPT-5.4 Nano saves you $37.14/month

That's 95% cheaper than Claude Opus 4.8 at 1,000 tokens/request and 100 requests/day.

Assumes 60% input / 40% output token ratio per request. Actual costs may vary based on your usage pattern.

Parameters & Context
ParameterClaude Opus 4.8GPT-5.4 Nano
Context Window1M400K
Max Output Tokens128,000128,000
Open SourceNoNo
CreatedMay 27, 2026Mar 17, 2026
Last updated: 10m ago

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